#box{
  /*position: absolute;*/
  margin:40px auto;
  clear: both;
  z-index: 100;
}
#signin-form{
  margin:0 auto;
  padding-bottom: 20px;
  width:400px;
  height:auto;
  border-radius:5px;
  z-index: 100;
  background-color: #fff;
  text-align: center;
  /*background:rgba(255,255,255, 0.2);*/
  /*margin: 100px auto;*/
}
#signin-form::after {
  content: '';
  display: block;
  width: 40px;
  height: 40px;
  position: absolute;
  top: -20px;
  left: 50%;
  margin-left: -21px;
  border-top-left-radius: 4px;
  /*border-left: 2px solid rgba(255,255,255, 0.3);*/
  /*border-top: 2px solid rgba(255,255,255, 0.3);*/
  transform: rotate(45deg);
  /*box-shadow: inset 1px 0 0 rgba(255,255,255,0.2), inset 0 1px 0 rgba(255,255,255,0.2);*/
}
#signin-form::before {
  content: '';
  display: block;
  width: 400px;
  height: 2px;
  position: absolute;
  /* margin: -199px 199px; */
  border-top-left-radius: 4px;
  /* transform: rotate(90deg); */
  /*box-shadow: inset 171px 0 0 0 rgba(255,255,255, 0.2), inset -171px 0 0 0 rgba(255,255,255, 0.2);*/
}
#loginbtn-form{
  color: #fff;
  display: inline-block;
  font-weight: bold;
  font-size: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  background-image: none;
  border: 1px solid transparent;
  white-space: nowrap;
  padding: 6px 12px;
  line-height: 1.42857143;
  border-radius: 0;
  -webkit-user-select: none;
}
#loginbtn-form{
  width: 300px;
  height: 40px;
  background-color: lawngreen;
  border-color: green;
  margin-top: 20px;
}
#loginbtn-form:hover{
  color: #fff;
  background-color: lightgreen;
  border-color: green;
  text-decoration: none;
}
#input-form1,#input-form{
  width: 300px;
  height: 40px;
  background-color:#fcc775;
  font-size: 16px;
}
